一、電池片回收有什么作用
1、減少對環境的污染壓力
如今,隨著社會經濟的發展,社會環境正面臨嚴峻的考驗。一方面,不可生資源的數量正在減少。另一方面,一些污染現象還在不斷破壞環境的平衡結構。比如說部分人隨意丟棄廢舊的電池片。這種情(qing)況下,會對環(huan)境的土壤(rang)、水源等產生嚴重危害。
2、提高資源的使用效率
廢(fei)舊(jiu)電池片(pian)并不(bu)是(shi)沒有用途,其實,廢(fei)舊(jiu)電池片(pian)可(ke)以(yi)被(bei)再(zai)次利用,從而可(ke)以(yi)提(ti)高資(zi)源(yuan)的(de)(de)(de)使(shi)用效率(lv),尤(you)其是(shi)一些不(bu)可(ke)再(zai)利用的(de)(de)(de)資(zi)源(yuan)能夠(gou)得到較(jiao)好的(de)(de)(de)保護,既能夠(gou)延長資(zi)源(yuan)的(de)(de)(de)使(shi)用時限,還能降低部分物資(zi)對(dui)環境(jing)造成的(de)(de)(de)污染(ran)。
3、節省了一定的生產成本
從電池(chi)片回收公司了解(jie)到,他們(men)使用廢舊電池(chi)為原料,生產新(xin)的(de)電池(chi)成本(ben)得到了大幅度降低,實現了“雙贏”的(de)局面。
在日常(chang)的工作(zuo)生活中,建議大家(jia)要妥善處理好廢(fei)(fei)(fei)舊(jiu)電(dian)(dian)(dian)池(chi)(chi)片,尤其是不能隨(sui)意處置,比(bi)如說(shuo)丟棄(qi)在垃圾(ji)堆里,那樣將會造成很大的危害,盡可能將廢(fei)(fei)(fei)舊(jiu)電(dian)(dian)(dian)池(chi)(chi)片收(shou)集起(qi)來(lai)送到電(dian)(dian)(dian)池(chi)(chi)片回(hui)收(shou)公(gong)司,在實(shi)現廢(fei)(fei)(fei)舊(jiu)電(dian)(dian)(dian)池(chi)(chi)片回(hui)收(shou)的同時,對保護環(huan)境起(qi)到了很好的作(zuo)用。
二、電池片回收范圍
電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou),多(duo)晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、單晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、太(tai)陽能電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、碎(sui)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、125*125單晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、125*125多(duo)晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、156*156單晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、156*156多(duo)晶(jing)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、高(gao)/低效太(tai)陽能電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、缺角/崩邊電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、廢(fei)電(dian)(dian)(dian)池(chi)(chi)(chi)片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)、太(tai)陽能電(dian)(dian)(dian)池(chi)(chi)(chi)裸片(pian)(pian)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou);銀漿(jiang)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou),擦銀布(bu)(bu)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou),銀擦布(bu)(bu)回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou),銀漿(jiang)罐回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou),太(tai)陽能電(dian)(dian)(dian)池(chi)(chi)(chi)板(ban)等(deng)一(yi)切硅材(cai)料回(hui)(hui)(hui)(hui)(hui)(hui)收(shou)(shou)(shou)。
三、太陽能電池片怎么進行回收
電(dian)池片可以回收,可以從太(tai)陽能(neng)電(dian)池中回收純(chun)硅。
太陽能電池主要含有硅(約91.6%重量)。它還包含其他材料,例如底層的鋁,頂層的銀電極,以及頂層的鉛和抗反射涂層。p型和n型硅晶片位于抗反射涂層和鋁層之間。太陽能電池片藍色層是(shi)抗反(fan)射涂層(SiNx),白線(xian)是(shi)銀電(dian)極。太(tai)陽能電(dian)池片的底部為(wei)(wei)鋁(lv)層。為(wei)(wei)了(le)去除這些材料(鋁(lv)、銀、鉛和抗反(fan)射涂層),需使(shi)用化學(xue)處理方(fang)法。
首先,氫(qing)氟酸(suan)或氫(qing)氟酸(suan)與其他化學品的混合物用(yong)于去(qu)除(chu)(chu)太陽(yang)能電(dian)池(chi)的抗反射涂(tu)層(ceng)、銀、鉛和pn結。由于氫(qing)氟酸(suan)是(shi)劇毒和腐(fu)蝕(shi)性化學品,因(yin)此在目前(qian)的工作中(zhong)不再使(shi)用(yong)氫(qing)氟酸(suan)。每(mei)一層(ceng)都使(shi)用(yong)化學處(chu)理一層(ceng)一層(ceng)地去(qu)除(chu)(chu)。
用濃(nong)NaOH溶(rong)(rong)液處(chu)理(li)(li)(li)(li)后去除鋁(lv)層。在反(fan)應過(guo)(guo)程(cheng)中(zhong)形(xing)成的(de)(de)氫(qing)氣(qi)被收集在一個(ge)腔(qiang)室中(zhong)并可(ke)用作燃料。通過(guo)(guo)過(guo)(guo)濾從NaOH溶(rong)(rong)液中(zhong)分(fen)離(li)氫(qing)氧化鋁(lv)。類(lei)似地,通過(guo)(guo)用HNO3處(chu)理(li)(li)(li)(li)去除銀(yin)(yin)和鉛。收集釋放的(de)(de)NO2并可(ke)用于生(sheng)產硝酸。分(fen)離(li)硝酸銀(yin)(yin),溶(rong)(rong)液用HCl處(chu)理(li)(li)(li)(li),形(xing)成氯化銀(yin)(yin)。濾出沉淀(dian)的(de)(de)氯化銀(yin)(yin)。此外,將溶(rong)(rong)液用NaOH處(chu)理(li)(li)(li)(li)以(yi)從溶(rong)(rong)液中(zhong)分(fen)離(li)鉛化合(he)物(PbO)。氧化鉛轉化為氫(qing)氧化鉛,過(guo)(guo)濾沉淀(dian)的(de)(de)氫(qing)氧化鉛。